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<tr class="t-nv-h2"><td colspan="5"> 迭代器</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iterator.html" title="cpp/header/iterator"><tt>&lt;iterator&gt;</tt></a></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 范围</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ranges.html" title="cpp/header/ranges"><tt>&lt;ranges&gt;</tt></a></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 算法</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="algorithm.html" title="cpp/header/algorithm"><tt>&lt;algorithm&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="execution.html" title="cpp/header/execution"><tt>&lt;execution&gt;</tt></a></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 数值</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="complex.html" title="cpp/header/complex"><tt>&lt;complex&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="random.html" title="cpp/header/random"><tt>&lt;random&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="valarray.html" title="cpp/header/valarray"><tt>&lt;valarray&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numeric.html" title="cpp/header/numeric"><tt>&lt;numeric&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="bit.html" title="cpp/header/bit"><tt>&lt;bit&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numbers.html" title="cpp/header/numbers"><tt>&lt;numbers&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="cfenv.html" title="cpp/header/cfenv"><tt>&lt;cfenv&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cmath.html" title="cpp/header/cmath"><tt>&lt;cmath&gt;</tt></a></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 输入/输出</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="iosfwd.html" title="cpp/header/iosfwd"><tt>&lt;iosfwd&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ios.html" title="cpp/header/ios"><tt>&lt;ios&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iomanip.html" title="cpp/header/iomanip"><tt>&lt;iomanip&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="streambuf.html" title="cpp/header/streambuf"><tt>&lt;streambuf&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="istream.html" title="cpp/header/istream"><tt>&lt;istream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ostream.html" title="cpp/header/ostream"><tt>&lt;ostream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iostream.html" title="cpp/header/iostream"><tt>&lt;iostream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="sstream.html" title="cpp/header/sstream"><tt>&lt;sstream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="fstream.html" title="cpp/header/fstream"><tt>&lt;fstream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="syncstream.html" title="cpp/header/syncstream"><tt>&lt;syncstream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <strong class="selflink"><tt>&lt;cstdio&gt;</tt></strong></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cinttypes.html" title="cpp/header/cinttypes"><tt>&lt;cinttypes&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="strstream.html" title="cpp/header/strstream"><tt>&lt;strstream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 正则表达式</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/header/regex"><tt>&lt;regex&gt;</tt></a></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 文件系统</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="filesystem.html" title="cpp/header/filesystem"><tt>&lt;filesystem&gt;</tt></a></td></tr>
<tr class="t-nv-h2"><td colspan="5"> 线程支持</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/header/thread"><tt>&lt;thread&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="atomic.html" title="cpp/header/atomic"><tt>&lt;atomic&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="mutex.html" title="cpp/header/mutex"><tt>&lt;mutex&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="shared_mutex.html" title="cpp/header/shared mutex"><tt>&lt;shared_mutex&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="condition_variable.html" title="cpp/header/condition variable"><tt>&lt;condition_variable&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="future.html" title="cpp/header/future"><tt>&lt;future&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="stop_token.html" title="cpp/header/stop token"><tt>&lt;stop_token&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="semaphore.html" title="cpp/header/semaphore"><tt>&lt;semaphore&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="latch.html" title="cpp/header/latch"><tt>&lt;latch&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/barrier&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/barrier（页面不存在）"><tt>&lt;barrier&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> C 兼容</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="ciso646.html" title="cpp/header/ciso646"><tt>&lt;ciso646&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cstdalign.html" title="cpp/header/cstdalign"><tt>&lt;cstdalign&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="cstdbool.html" title="cpp/header/cstdbool"><tt>&lt;cstdbool&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ccomplex.html" title="cpp/header/ccomplex"><tt>&lt;ccomplex&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="ctgmath.html" title="cpp/header/ctgmath"><tt>&lt;ctgmath&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<p>此头文件原作为 <code><b>&lt;stdio.h&gt;</b></code> 存在于 C 标准库。
</p><p>此头文件是 <a href="../io/c.html" title="cpp/io/c">C 风格输入/输出</a>库的一部分。
</p>
<h3><span class="mw-headline" id=".E7.B1.BB.E5.9E.8B">类型</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <a href="../io/c.html#.E7.B1.BB.E5.9E.8B" title="cpp/io/c"><tt>FILE</tt></a>
</td>
<td> 类型，足以保有控制 C I/O 流所需的全部信息
</td></tr>

<tr class="t-dsc">
<td>  <a href="../io/c.html#.E7.B1.BB.E5.9E.8B" title="cpp/io/c"><tt>fpos_t</tt></a>
</td>
<td> 类型，足以唯一指定文件中的位置
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../types/size_t.html" title="cpp/types/size t"> <span class="t-lines"><span>size_t</span></span></a></div></div>
</td>
<td>  <a href="../language/sizeof.html" title="cpp/language/sizeof"><tt>sizeof</tt></a> 运算符返回的无符号整数类型 <br> <span class="t-mark">(typedef)</span> </td></tr>
</table>
<h3><span class="mw-headline" id=".E5.AE.8F">宏</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../types/NULL.html" title="cpp/types/NULL"> <span class="t-lines"><span>NULL</span></span></a></div></div>
</td>
<td>  实现定义的空指针常量 <br> <span class="t-mark">(宏常量)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>stdin</span><span>stdout</span><span>stderr</span></span></div></div>
</td>
<td>  与输入流关联的 <span class="t-c"><span class="mw-geshi cpp source-cpp">FILE<span class="sy2">*</span></span></span> 类型的表达式<br>与输出流关联的 <span class="t-c"><span class="mw-geshi cpp source-cpp">FILE<span class="sy2">*</span></span></span> 类型的表达式<br>与错误输出流关联的 <span class="t-c"><span class="mw-geshi cpp source-cpp">FILE<span class="sy2">*</span></span></span> 类型的表达式 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>EOF</span></span></div></div>
</td>
<td>  拥有 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">int</span></span></span> 类型和负值的整数常量表达式 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>FOPEN_MAX</span></span></div></div>
</td>
<td>  可同时打开的文件数 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>FILENAME_MAX</span></span></div></div>
</td>
<td>  为保有受支持的最长文件名所需的 char 数组的长度 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>BUFSIZ</span></span></div></div>
</td>
<td>  <span class="t-lc"><a href="../io/c/setbuf.html" title="cpp/io/c/setbuf">std::setbuf</a></span> 所用的缓冲区大小 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>_IOFBF</span><span>_IOLBF</span><span>_IONBF</span></span></div></div>
</td>
<td>  给 <span class="t-lc"><a href="../io/c/setbuf.html" title="cpp/io/c/setbuf">std::setbuf</a></span> 的实参，指示全缓冲 I/O<br>给 <span class="t-lc"><a href="../io/c/setbuf.html" title="cpp/io/c/setbuf">std::setbuf</a></span> 的实参，指示行缓冲 I/O<br>给 <span class="t-lc"><a href="../io/c/setbuf.html" title="cpp/io/c/setbuf">std::setbuf</a></span> 的实参，指示无缓冲 I/O <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>SEEK_SET</span><span>SEEK_CUR</span><span>SEEK_END</span></span></div></div>
</td>
<td>  给 <span class="t-lc"><a href="../io/c/fseek.html" title="cpp/io/c/fseek">std::fseek</a></span> 的实参，指示从文件起始寻位<br>给 <span class="t-lc"><a href="../io/c/fseek.html" title="cpp/io/c/fseek">std::fseek</a></span> 的实参，指示从当前文件位置寻位<br>给 <span class="t-lc"><a href="../io/c/fseek.html" title="cpp/io/c/fseek">std::fseek</a></span> 的实参，指示从文件尾寻位 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>TMP_MAX</span></span></div></div>
</td>
<td>  <span class="t-lc"><a href="../io/c/tmpnam.html" title="cpp/io/c/tmpnam">std::tmpnam</a></span> 所能生成的唯一文件名的最大数量 <br> <span class="t-mark">(宏常量)</span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>L_tmpnam</span></span></div></div>
</td>
<td>  为保有 <span class="t-lc"><a href="../io/c/tmpnam.html" title="cpp/io/c/tmpnam">std::tmpnam</a></span> 结果所需的 char 数组的大小 <br> <span class="t-mark">(宏常量)</span>
</td></tr>
</table>
<h3><span class="mw-headline" id=".E5.87.BD.E6.95.B0">函数</span></h3>
<table class="t-dsc-begin">

<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.96.87.E4.BB.B6.E8.AE.BF.E9.97.AE"> 文件访问 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fopen.html" title="cpp/io/c/fopen"> <span class="t-lines"><span>fopen</span></span></a></div></div>
</td>
<td>  打开文件 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/freopen.html" title="cpp/io/c/freopen"> <span class="t-lines"><span>freopen</span></span></a></div></div>
</td>
<td>  以不同名称打开既存流 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fclose.html" title="cpp/io/c/fclose"> <span class="t-lines"><span>fclose</span></span></a></div></div>
</td>
<td>  关闭文件 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fflush.html" title="cpp/io/c/fflush"> <span class="t-lines"><span>fflush</span></span></a></div></div>
</td>
<td>  将输出流与实际文件同步 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/setbuf.html" title="cpp/io/c/setbuf"> <span class="t-lines"><span>setbuf</span></span></a></div></div>
</td>
<td>  为文件流设置缓冲区 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/setvbuf.html" title="cpp/io/c/setvbuf"> <span class="t-lines"><span>setvbuf</span></span></a></div></div>
</td>
<td>  为文件流设置缓冲区与其大小 <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E7.9B.B4.E6.8E.A5.E8.BE.93.E5.85.A5.2F.E8.BE.93.E5.87.BA"> 直接输入/输出 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fread.html" title="cpp/io/c/fread"> <span class="t-lines"><span>fread</span></span></a></div></div>
</td>
<td>  从文件读取 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fwrite.html" title="cpp/io/c/fwrite"> <span class="t-lines"><span>fwrite</span></span></a></div></div>
</td>
<td>  写入文件 <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.97.A0.E6.A0.BC.E5.BC.8F.E8.BE.93.E5.85.A5.2F.E8.BE.93.E5.87.BA"> 无格式输入/输出 </span></h5>
</td></tr>

<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E7.AA.84.E5.AD.97.E7.AC.A6">  <span style="font-size:0.7em; line-height:130%">窄字符</span> </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fgetc.html" title="cpp/io/c/fgetc"> <span class="t-lines"><span>fgetc</span><span>getc</span></span></a></div></div>
</td>
<td>  从文件流获取字符 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fgets.html" title="cpp/io/c/fgets"> <span class="t-lines"><span>fgets</span></span></a></div></div>
</td>
<td>  从文件流获取字符串 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fputc.html" title="cpp/io/c/fputc"> <span class="t-lines"><span>fputc</span><span>putc</span></span></a></div></div>
</td>
<td>  写字符到文件流 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fputs.html" title="cpp/io/c/fputs"> <span class="t-lines"><span>fputs</span></span></a></div></div>
</td>
<td>  写字符串到文件流 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/getchar.html" title="cpp/io/c/getchar"> <span class="t-lines"><span>getchar</span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdin</a></span> 读取字符 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/gets.html" title="cpp/io/c/gets"> <span class="t-lines"><span>gets</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-deprecated-cxx11">(C++11 中弃用)</span></span><span><span class="t-mark-rev t-until-cxx14">(C++14 中移除)</span></span></span></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdin</a></span> 读取字符串 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/putchar.html" title="cpp/io/c/putchar"> <span class="t-lines"><span>putchar</span></span></a></div></div>
</td>
<td>  写字符到 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdout</a></span> <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/puts.html" title="cpp/io/c/puts"> <span class="t-lines"><span>puts</span></span></a></div></div>
</td>
<td>  写字符串到 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdout</a></span>  <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/ungetc.html" title="cpp/io/c/ungetc"> <span class="t-lines"><span>ungetc</span></span></a></div></div>
</td>
<td>  把字符放回文件流 <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.9C.89.E6.A0.BC.E5.BC.8F.E8.BE.93.E5.85.A5.2F.E8.BE.93.E5.87.BA"> 有格式输入/输出 </span></h5>
</td></tr>

<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E7.AA.84.2F.E5.A4.9A.E5.AD.97.E8.8A.82.E5.AD.97.E7.AC.A6">  <span style="font-size:0.7em; line-height:130%">窄/多字节字符</span> </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/scanf.html" title="cpp/io/c/fscanf"> <span class="t-lines"><span>scanf</span><span>fscanf</span><span>sscanf</span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdin</a></span>、文件流或缓冲区读取有格式输入 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/vfscanf.html" title="cpp/io/c/vfscanf"> <span class="t-lines"><span>vscanf</span><span>vfscanf</span><span>vsscanf</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>  使用可变实参列表<br>从 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdin</a></span>、文件流或缓冲区读取有格式输入 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/printf.html" title="cpp/io/c/fprintf"> <span class="t-lines"><span>printf</span><span>fprintf</span><span>sprintf</span><span>snprintf</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   打印有格式输出到 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdout</a></span>、文件流或缓冲区  <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/vfprintf.html" title="cpp/io/c/vfprintf"> <span class="t-lines"><span>vprintf</span><span>vfprintf</span><span>vsprintf</span><span>vsnprintf</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>  使用可变实参列表<br>打印有格式输出到 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stdout</a></span>、文件流或缓冲区 <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.96.87.E4.BB.B6.E5.AF.BB.E4.BD.8D"> 文件寻位 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/ftell.html" title="cpp/io/c/ftell"> <span class="t-lines"><span>ftell</span></span></a></div></div>
</td>
<td>  返回当前文件位置指示器 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fgetpos.html" title="cpp/io/c/fgetpos"> <span class="t-lines"><span>fgetpos</span></span></a></div></div>
</td>
<td>  获取文件位置指示器 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fseek.html" title="cpp/io/c/fseek"> <span class="t-lines"><span>fseek</span></span></a></div></div>
</td>
<td>  移动文件位置指示器到文件中的指定位置 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/fsetpos.html" title="cpp/io/c/fsetpos"> <span class="t-lines"><span>fsetpos</span></span></a></div></div>
</td>
<td>  移动文件位置指示器到文件中的指定位置 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/rewind.html" title="cpp/io/c/rewind"> <span class="t-lines"><span>rewind</span></span></a></div></div>
</td>
<td>  移动文件位置指示器到文件起始 <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E9.94.99.E8.AF.AF.E5.A4.84.E7.90.86"> 错误处理 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/clearerr.html" title="cpp/io/c/clearerr"> <span class="t-lines"><span>clearerr</span></span></a></div></div>
</td>
<td>  清除错误 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/feof.html" title="cpp/io/c/feof"> <span class="t-lines"><span>feof</span></span></a></div></div>
</td>
<td>  检查文件尾 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/ferror.html" title="cpp/io/c/ferror"> <span class="t-lines"><span>ferror</span></span></a></div></div>
</td>
<td>  检查文件错误 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/perror.html" title="cpp/io/c/perror"> <span class="t-lines"><span>perror</span></span></a></div></div>
</td>
<td>  显示对应当前错误的字符串于 <span class="t-lc"><a href="../io/c.html" title="cpp/io/c">stderr</a></span> <br> <span class="t-mark">(函数)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.96.87.E4.BB.B6.E4.B8.8A.E7.9A.84.E6.93.8D.E4.BD.9C"> 文件上的操作 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/remove.html" title="cpp/io/c/remove"> <span class="t-lines"><span>remove</span></span></a></div></div>
</td>
<td>   删除文件  <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/rename.html" title="cpp/io/c/rename"> <span class="t-lines"><span>rename</span></span></a></div></div>
</td>
<td>   重命名文件 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/tmpfile.html" title="cpp/io/c/tmpfile"> <span class="t-lines"><span>tmpfile</span></span></a></div></div>
</td>
<td>   创建并打开一个临时、自动移除的文件 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../io/c/tmpnam.html" title="cpp/io/c/tmpnam"> <span class="t-lines"><span>tmpnam</span></span></a></div></div>
</td>
<td>  返回一个唯一独有的文件名 <br> <span class="t-mark">(函数)</span> </td></tr>
</table>
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
<ul><li> <span class="t-lc"><a href="../types/NULL.html" title="cpp/types/NULL">NULL</a></span> 亦定义于下列头文件：
<ul><li> <a href="clocale.html" title="cpp/header/clocale"><tt>&lt;clocale&gt;</tt></a>
</li><li> <a href="ctime.html" title="cpp/header/ctime"><tt>&lt;ctime&gt;</tt></a>
</li><li> <a href="cstddef.html" title="cpp/header/cstddef"><tt>&lt;cstddef&gt;</tt></a>
</li><li> <a href="cstring.html" title="cpp/header/cstring"><tt>&lt;cstring&gt;</tt></a>
</li><li> <a href="cwchar.html" title="cpp/header/cwchar"><tt>&lt;cwchar&gt;</tt></a>
</li><li> <a href="cstdlib.html" title="cpp/header/cstdlib"><tt>&lt;cstdlib&gt;</tt></a>
</li></ul>
</li><li> <span class="t-lc"><a href="../types/size_t.html" title="cpp/types/size t">std::size_t</a></span> 亦定义于下列头文件：
<ul><li> <a href="ctime.html" title="cpp/header/ctime"><tt>&lt;ctime&gt;</tt></a>
</li><li> <a href="cstddef.html" title="cpp/header/cstddef"><tt>&lt;cstddef&gt;</tt></a>
</li><li> <a href="cstring.html" title="cpp/header/cstring"><tt>&lt;cstring&gt;</tt></a>
</li><li> <a href="cwchar.html" title="cpp/header/cwchar"><tt>&lt;cwchar&gt;</tt></a>
</li><li> <a href="cstdlib.html" title="cpp/header/cstdlib"><tt>&lt;cstdlib&gt;</tt></a>
</li></ul>
</li></ul>
<h3><span class="mw-headline" id=".E6.A6.82.E8.A6.81">概要</span></h3>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">using</span> size_t <span class="sy1">=</span> <span class="coMULTI">/* 见定义 */</span><span class="sy4">;</span>
  <span class="kw1">using</span> FILE <span class="sy1">=</span> <span class="coMULTI">/* 见定义 */</span> <span class="sy4">;</span>
  <span class="kw1">using</span> fpos_t <span class="sy1">=</span> <span class="coMULTI">/* 见定义 */</span> <span class="sy4">;</span>
<span class="br0">}</span>
 
<span class="co2">#define NULL /* 见定义 */</span>
<span class="co2">#define _IOFBF /* 见定义 */</span>
<span class="co2">#define _IOLBF /* 见定义 */</span>
<span class="co2">#define _IONBF /* 见定义 */</span>
<span class="co2">#define BUFSIZ /* 见定义 */</span>
<span class="co2">#define EOF /* 见定义 */</span>
<span class="co2">#define FOPEN_MAX /* 见定义 */</span>
<span class="co2">#define FILENAME_MAX /* 见定义 */</span>
<span class="co2">#define L_tmpnam /* 见定义 */</span>
<span class="co2">#define SEEK_CUR /* 见定义 */</span>
<span class="co2">#define SEEK_END /* 见定义 */</span>
<span class="co2">#define SEEK_SET /* 见定义 */</span>
<span class="co2">#define TMP_MAX /* 见定义 */</span>
<span class="co2">#define stderr /* 见定义 */</span>
<span class="co2">#define stdin /* 见定义 */</span>
<span class="co2">#define stdout /* 见定义 */</span>
 
<span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw4">int</span> remove<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> filename<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> rename<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> old, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> new<span class="br0">)</span><span class="sy4">;</span>
  FILE<span class="sy2">*</span> tmpfile<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">char</span><span class="sy2">*</span> tmpnam<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fclose<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fflush<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  FILE<span class="sy2">*</span> fopen<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> filename, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> mode<span class="br0">)</span><span class="sy4">;</span>
  FILE<span class="sy2">*</span> freopen<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> filename, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> mode, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">void</span> setbuf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">char</span><span class="sy2">*</span> buf<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> setvbuf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">char</span><span class="sy2">*</span> buf, <span class="kw4">int</span> mode, size_t size<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fprintf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fscanf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> printf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> scanf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> snprintf<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s, size_t n, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> sprintf<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> sscanf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, ...<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vfprintf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vfscanf<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vprintf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vscanf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vsnprintf<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s, size_t n, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vsprintf<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> vsscanf<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> format, <span class="kw4">va_list</span> arg<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fgetc<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">char</span><span class="sy2">*</span> fgets<span class="br0">(</span><span class="kw4">char</span><span class="sy2">*</span> s, <span class="kw4">int</span> n, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fputc<span class="br0">(</span><span class="kw4">int</span> c, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fputs<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> getc<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> getchar<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> putc<span class="br0">(</span><span class="kw4">int</span> c, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> putchar<span class="br0">(</span><span class="kw4">int</span> c<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> puts<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> ungetc<span class="br0">(</span><span class="kw4">int</span> c, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  size_t fread<span class="br0">(</span><span class="kw4">void</span><span class="sy2">*</span> ptr, size_t size, size_t nmemb, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  size_t fwrite<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">void</span><span class="sy2">*</span> ptr, size_t size, size_t nmemb, FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fgetpos<span class="br0">(</span>FILE<span class="sy2">*</span> stream, fpos_t<span class="sy2">*</span> pos<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fseek<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">long</span> <span class="kw4">int</span> offset, <span class="kw4">int</span> whence<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> fsetpos<span class="br0">(</span>FILE<span class="sy2">*</span> stream, <span class="kw4">const</span> fpos_t<span class="sy2">*</span> pos<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">long</span> <span class="kw4">int</span> ftell<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">void</span> rewind<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">void</span> clearerr<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> feof<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">int</span> ferror<span class="br0">(</span>FILE<span class="sy2">*</span> stream<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw4">void</span> perror<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>

<!-- 
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Preprocessor generated node count: 9648/1000000
Post‐expand include size: 738323/2097152 bytes
Template argument size: 70583/2097152 bytes
Highest expansion depth: 22/40
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